WO2007007384A1 - 積層型の反射型液晶表示素子 - Google Patents
積層型の反射型液晶表示素子 Download PDFInfo
- Publication number
- WO2007007384A1 WO2007007384A1 PCT/JP2005/012688 JP2005012688W WO2007007384A1 WO 2007007384 A1 WO2007007384 A1 WO 2007007384A1 JP 2005012688 W JP2005012688 W JP 2005012688W WO 2007007384 A1 WO2007007384 A1 WO 2007007384A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- alignment film
- display element
- panel
- crystal layer
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13718—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a change of the texture state of a cholesteric liquid crystal
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133773—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers the alignment material or treatment being different for the two opposite substrates
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13478—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells based on selective reflection
Definitions
- the present invention relates to a multilayer reflective liquid crystal display element, and in particular, a multilayer reflective liquid crystal display element in which two or more liquid crystal panels each having a liquid crystal layer of cholesteric liquid crystals having different selective reflection wavelengths are laminated. About.
- the cholesteric liquid crystal method is superior in terms of “memory function”, “low power”, “colorization”, and the like.
- the cholesteric liquid crystal system is overwhelmingly advantageous for color display.
- Systems other than the cholesteric liquid crystal system must be arranged in three colors for each pixel, so the brightness is 1Z3, which corresponds to a maximum of three, and this is not realistic.
- the cholesteric liquid crystal method reflects color due to the interference of the liquid crystal, so that color display is possible by simply stacking, and there is an advantage that brightness close to 50% or higher can be obtained.
- a cholesteric liquid crystal type color display element is described in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 2002-116461).
- FIG. 1A and FIG. 1B are diagrams for explaining the principle of display using a cholesteric liquid crystal.
- the panel has a configuration in which the liquid crystal layer 1 is sandwiched between transparent substrates 3 and 4.
- the substrate 3 is a substrate on the display surface side.
- a black light absorption layer 5 is provided on the outer surface of the substrate 4. It is.
- Cholesteric liquid crystals have two stable states: a state in which layers are formed parallel to the substrate surface and a state in which layers are formed in a vertical direction. These two states are electrically switchable and have a bistable characteristic that allows the two states to be maintained without supplying power.
- the spiral axis of the liquid crystal molecules 2 connected in a spiral shape is And it is arranged in a direction perpendicular to 4 and forms a layer parallel to the substrate surface.
- This state is called the planar state.
- the liquid crystal layer in the planar state selectively reflects (selectively reflects) light having a wavelength corresponding to the helical pitch of the liquid crystal molecules, exhibits a specific color, and is reflected and displayed. This is the bright state (reflection state). At this time, the reflected light becomes one of the left and right circularly polarized light according to the rotation direction of the spiral pitch.
- FIG. 3 is a diagram showing a cross-sectional view of the liquid crystal display element 9 of FIG. The electrodes are not shown.
- Each of the panels 10B, 10G, and 10R has a configuration in which the liquid crystal layers 1B, 1G, and 1R are sandwiched between the transparent substrates 3 and 4, and the liquid crystal layers are sealed with a seal 6.
- Panels 10B, 10G, and 10R are arranged in the same order as the display surface side force.Panels 10B and 10G are bonded with the first adhesive layer 7, and panels 10G and 10R are bonded with the second adhesive layer 8. .
- a black light absorption layer 5 is provided on the outer surface of the substrate opposite to the display surface side of the panel 10R.
- the planar state is used as a “bright state” and the focal conic state is used as a “dark state” as described above.
- the brightness as the display characteristic is better as the reflectivity in the planar state (bright state) is larger, and the contrast is higher.
- the reflected light in the planar state is either the left or right circularly polarized light, and therefore has a maximum reflectance of 50%.
- One way to achieve high brightness is to align the spiral axis of the spiral pitch in the planar state by applying an alignment regulating force that regulates the alignment of the liquid crystal molecules at the liquid crystal interface, and directivity to the selectively reflected light. It is known how to increase the reflectance in a specific direction (observation direction).
- an alignment film is formed on the liquid crystal interface and a rubbing treatment is performed on the surface of the alignment film, or a photo-alignment film is formed on the liquid crystal interface and a purple surface is formed on the surface of the photo-alignment film.
- a method of irradiating external light or a hybrid method combining them is common. Even if the force for providing the alignment film or the photo-alignment film is not provided, the alignment control force differs, and the alignment control force varies depending on the density of the rubbing treatment of the alignment film or the irradiation intensity of the ultraviolet light to the photo-alignment film.
- Patent Document 1 discloses that in the planar state, the liquid crystal spiral axis slightly tilts from the substrate normal line, and the orientation is randomly different from the polydomain state, and the liquid crystal spiral axis. Describes a state in which a monodomain state that is substantially in the normal direction of the substrate is mixed. Specifically, the rubbing density is increased in the order of the blue panel, green panel, and red panel, and the rubbing density on the non-display surface side in each panel. Is larger than the rubbing density on the display surface side. In this way, the liquid crystal layer having a longer selective reflection wavelength has a stronger alignment regulating force.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-116461
- Patent Document 1 actually increases the scattering in the focal conic state and lowers the contrast.
- An object of the present invention is to realize a high-contrast, multi-layer reflective liquid crystal display element by reducing scattering in the focal conic state of cholesteric liquid crystal.
- FIG. 1A is a diagram for explaining the principle of display using cholesteric liquid crystal.
- FIG. 2 is a diagram showing an outline of a color cholesteric liquid crystal display device.
- FIG. 3 is a diagram showing a panel structure of a color cholesteric liquid crystal display element.
- FIG. 4 is a diagram showing the effect of alignment regulating force in a cholesteric liquid crystal display element.
- FIG. 5A is a diagram for explaining the principle of the present invention.
- FIG. 5B is a diagram for explaining the principle of the present invention.
- FIG. 5C is a diagram for explaining the principle of the present invention.
- FIG. 5D is a diagram for explaining the principle of the present invention.
- FIG. 6 is a diagram for explaining the structure and manufacturing method of a cholesteric liquid crystal display element according to an embodiment of the present invention.
- FIG. 7 is a diagram for explaining the structure and manufacturing method of a cholesteric liquid crystal display element of an embodiment of the present invention.
- an alignment film or a photo-alignment film is formed on the surface (inner surface) of the panel substrates 3 and 4 in contact with the liquid crystal layer, and a rubbing treatment or ultraviolet light irradiation is performed to apply an alignment regulating force.
- a rubbing treatment or ultraviolet light irradiation is performed to apply an alignment regulating force.
- the orientation regulation force is set appropriately so that the high reflectivity (brightness) and visibility are in an appropriate state.
- the influence of the orientation regulating force in the planar state in each color panel will be considered.
- the cholesteric liquid crystal layer having a longer selective reflection wavelength has a longer pitch of the spiral axis of the liquid crystal.
- the alignment regulating force is a force that regulates the direction of the liquid crystal molecules at the end of the helical axis, and it is considered that the longer the helical axis pitch, the more susceptible it is to the influence.
- the first red panel with the longer pitch of the spiral axis of the liquid crystal aligns the liquid crystal more uniformly, and the alignment uniformity of the liquid crystal decreases in the order of the green panel and the blue panel. I think that.
- the spiral axis of the liquid crystal is parallel to the substrate.
- the liquid crystal molecules are considered to be less affected by the alignment regulating force, but when the planar state force is also changed to the focal force conic state, it is considered to be affected by the alignment state of the liquid crystal in the planar state. .
- the spiral axis of the liquid crystal is the substrate due to the strong alignment regulating force and uniformity in the planar state when changing to the focal conic state. It is thought that it is difficult to be parallel to the.
- a panel with a long selective reflection wavelength has a weaker alignment regulating force, thereby reducing scattering in a panel with a long selective reflection wavelength so as not to cause a decrease in contrast.
- the reflective liquid crystal display device of the embodiment has a schematic configuration as shown in FIG.
- the reflective liquid crystal display element 9 of the present invention used in this apparatus has a panel structure as shown in FIG. 3, and is characterized by the structure of the portion in contact with the liquid crystal layer of the panel.
- 6 and 7 are diagrams showing a configuration and a manufacturing method of the reflective liquid crystal display element of the example.
- Substrate 4B opposite to the display surface of the first blue panel 10B, Substrate 4G opposite to the display surface of the second green panel 10G, and Substrate opposite to the display surface of the third red panel 10R A transparent electrode layer 23, an insulating layer 22, and an alignment film 21 are formed on 4R.
- the insulating layer 22 is provided to protect the transparent electrode layer when assembled and to improve the uniformity of the voltage applied to the liquid crystal layer.
- a black light absorption layer 5 is formed on the outer surface of the substrate 4R.
- the rubbing density of the substrate 4 mm is 1.78 times the rubbing density of the substrate 4G.
- the orientation regulating force of the substrate 4 mm is It is about 1.8 times the orientation regulating power of substrate 4G. Since the surface of the substrate 4R is not rubbed, the orientation regulating force of the substrate 4R is smaller than the orientation regulating force of the substrate 4G.
- the seal 6 is provided on the substrate 4B, the substrate 4G, and the substrate 4R, and the spacer 25 is dispersed.
- the display surface side substrate 3B of the first blue panel 10B the display surface side substrate 3G of the second green panel 10G, and the display surface side substrate 3R of the third red panel 10R.
- a substrate on which the transparent electrode layer 23 is formed is prepared in advance.
- the substrates 3B, 3G, and 3R are attached to the substrate 4G and the substrate 4R as shown in the figure.
- the first to third panels 10B, 10G, and 10R are stacked and fixed via the adhesive layers 7 and 8 after the electrode positions of the panels are aligned. To do. In this way, a reflective liquid crystal display element is completed.
- the third red panel 10R has the smallest alignment regulating force because the substrate 3R is not rubbed.
- the 10G orientation regulating force of the second green panel having a small rubbing density is larger than the orientation regulating force of the third red panel 10R, but smaller than the orientation regulating force of the first blue panel 10B.
- the liquid crystal layer 1R of the third red panel 10R has a long helical pitch, so it is easily aligned by the alignment regulating force, but the 10G liquid crystal layer 1G of the second green panel is easier to align than the liquid crystal layer 1R. This is the opposite of the fact that it is less oriented than the 10B liquid crystal layer 1G of the first blue panel.
- the alignment state of all the liquid crystal layers 1 B, 1G, and 1R in the planar state is the same, and the brightness is improved to a certain extent, and the contrast is reduced little.
- a liquid crystal display element is obtained.
- the substrate 3B, 3G, 3R on the display surface side of each panel is not provided with an insulating layer or an alignment film, but can be provided as in the configuration described in Patent Document 1.
- the insulating layer and alignment film should not be provided as in the examples. Is desirable.
- Substrate 3B, 3G, and 3R can provide sufficient reflection strength without an insulating layer or alignment film.
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- Crystallography & Structural Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800510164A CN101223474B (zh) | 2005-07-08 | 2005-07-08 | 层叠型反射式液晶显示元件 |
JP2007524480A JP4637908B2 (ja) | 2005-07-08 | 2005-07-08 | 積層型の反射型液晶表示素子 |
PCT/JP2005/012688 WO2007007384A1 (ja) | 2005-07-08 | 2005-07-08 | 積層型の反射型液晶表示素子 |
EP05758239A EP1903384A4 (en) | 2005-07-08 | 2005-07-08 | MULTILAYER REFLECTING LIQUID CRYSTAL DISPLAY ELEMENT |
KR1020087000414A KR100949404B1 (ko) | 2005-07-08 | 2005-07-08 | 적층형의 반사형 액정 표시 소자 |
US11/964,429 US7746430B2 (en) | 2005-07-08 | 2007-12-26 | Reflective liquid crystal display device of lamination type wherein the difference in orientation regulating force results whether or not the orientation film is present |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/012688 WO2007007384A1 (ja) | 2005-07-08 | 2005-07-08 | 積層型の反射型液晶表示素子 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/964,429 Continuation US7746430B2 (en) | 2005-07-08 | 2007-12-26 | Reflective liquid crystal display device of lamination type wherein the difference in orientation regulating force results whether or not the orientation film is present |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007007384A1 true WO2007007384A1 (ja) | 2007-01-18 |
Family
ID=37636792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/012688 WO2007007384A1 (ja) | 2005-07-08 | 2005-07-08 | 積層型の反射型液晶表示素子 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7746430B2 (ja) |
EP (1) | EP1903384A4 (ja) |
JP (1) | JP4637908B2 (ja) |
KR (1) | KR100949404B1 (ja) |
CN (1) | CN101223474B (ja) |
WO (1) | WO2007007384A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010060940A (ja) * | 2008-09-04 | 2010-03-18 | Fujitsu Ltd | 液晶表示素子 |
WO2011107215A1 (en) | 2010-03-01 | 2011-09-09 | Merck Patent Gmbh | Electro-optical switching element and electro-optical display |
JP2011203448A (ja) * | 2010-03-25 | 2011-10-13 | Fujitsu Ltd | 液晶表示装置 |
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US8199086B2 (en) * | 2004-01-28 | 2012-06-12 | Kent Displays Incorporated | Stacked color photodisplay |
US8228301B2 (en) * | 2007-07-31 | 2012-07-24 | Kent Displays Incorporated | Multiple color writing tablet |
JP2011095634A (ja) * | 2009-10-30 | 2011-05-12 | Fujitsu Ltd | 液晶表示装置 |
TW201217860A (en) * | 2010-10-25 | 2012-05-01 | Ind Tech Res Inst | Cholesteric liquid crystal device |
US9134561B2 (en) | 2011-11-01 | 2015-09-15 | Kent Displays Incorporated | Writing tablet information recording device |
US9235075B2 (en) | 2012-05-22 | 2016-01-12 | Kent Displays Incorporated | Electronic display with patterned layer |
US9116379B2 (en) | 2012-05-22 | 2015-08-25 | Kent Displays Incorporated | Electronic display with semitransparent back layer |
US10088701B2 (en) | 2013-11-01 | 2018-10-02 | Kent Displays Inc. | Electronic writing device with dot pattern recognition system |
US9851612B2 (en) | 2014-04-02 | 2017-12-26 | Kent Displays Inc. | Liquid crystal display with identifiers |
CN107957639B (zh) * | 2016-10-14 | 2020-04-24 | 京东方科技集团股份有限公司 | 显示基板及其制作方法、显示装置及其驱动方法 |
CN106997127B (zh) * | 2017-04-21 | 2022-05-20 | 深圳市屏柔科技有限公司 | 一种高亮度粗笔迹压敏型胆甾相液晶黑板结构及制作工艺 |
JPWO2019013284A1 (ja) * | 2017-07-12 | 2020-03-19 | 富士フイルム株式会社 | 液晶組成物、反射層の製造方法、反射層、硬化物、光学異方体 |
US20240045245A1 (en) * | 2022-08-08 | 2024-02-08 | Iris Optronics Co., Ltd. | Cholesteric liquid crystal composite display device |
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TW574586B (en) * | 2001-09-19 | 2004-02-01 | Optrex Kk | Liquid crystal display element |
JP2003195341A (ja) * | 2001-12-25 | 2003-07-09 | Minolta Co Ltd | 積層型液晶表示素子 |
JP3891018B2 (ja) * | 2002-02-18 | 2007-03-07 | コニカミノルタホールディングス株式会社 | 液晶表示素子の駆動方法、駆動装置及び液晶表示装置 |
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JP4449561B2 (ja) * | 2004-04-30 | 2010-04-14 | 富士ゼロックス株式会社 | 高分子/コレステリック液晶分散体及びその製造方法、並びにこれを用いた液晶表示素子 |
-
2005
- 2005-07-08 EP EP05758239A patent/EP1903384A4/en not_active Withdrawn
- 2005-07-08 CN CN2005800510164A patent/CN101223474B/zh not_active Expired - Fee Related
- 2005-07-08 WO PCT/JP2005/012688 patent/WO2007007384A1/ja not_active Application Discontinuation
- 2005-07-08 JP JP2007524480A patent/JP4637908B2/ja not_active Expired - Fee Related
- 2005-07-08 KR KR1020087000414A patent/KR100949404B1/ko not_active IP Right Cessation
-
2007
- 2007-12-26 US US11/964,429 patent/US7746430B2/en not_active Expired - Fee Related
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JPH1031205A (ja) * | 1996-07-17 | 1998-02-03 | Toshiba Corp | 反射型液晶表示素子 |
JP2002116461A (ja) * | 2000-08-04 | 2002-04-19 | Minolta Co Ltd | 液晶光変調素子及びその製造方法 |
Non-Patent Citations (1)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010060940A (ja) * | 2008-09-04 | 2010-03-18 | Fujitsu Ltd | 液晶表示素子 |
WO2011107215A1 (en) | 2010-03-01 | 2011-09-09 | Merck Patent Gmbh | Electro-optical switching element and electro-optical display |
DE112011100732T5 (de) | 2010-03-01 | 2013-01-24 | Merck Patent Gmbh | Elektrooptisches Schaltelement und elektrooptische Anzeige |
JP2011203448A (ja) * | 2010-03-25 | 2011-10-13 | Fujitsu Ltd | 液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
KR100949404B1 (ko) | 2010-03-24 |
EP1903384A1 (en) | 2008-03-26 |
US7746430B2 (en) | 2010-06-29 |
EP1903384A4 (en) | 2010-03-24 |
JP4637908B2 (ja) | 2011-02-23 |
JPWO2007007384A1 (ja) | 2009-01-29 |
US20080137009A1 (en) | 2008-06-12 |
CN101223474A (zh) | 2008-07-16 |
CN101223474B (zh) | 2010-07-14 |
KR20080026599A (ko) | 2008-03-25 |
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